Clutch.



No. 657,524. Patentd Sept. jl, |900.

P. DIEHL.

c-Lufcu. (Application led Apr. 8; 1900.)

(un Model.)

, I I 2 I --w|TNEssES= Y Il C lNvENToR:

` tion.

the county of Union and State of New Jersey,-

provements in Clutches, of which the following is a specification, reference being had therein to the accompanying drawings.

frictional hold on the driven member when a face view of the clutch and driven member,

`driving members each having a fixed pinion .A are. recessed vfor the reception of clutchlmembers B. The clutch-levers D have curved PHILIP DIEHL, OF ELIZABETH,

PATENT OFFICE.

JERSEY, ASSIGNOR TO THE SINGER MANUFACTURING COMPANY, OF NEW JERSEY.

CLUTCH;

SPCIFICATIQN forming pari.- of Letters` Patent No. 657.524,(1ated september 1 1, 1900.

Application tied April 3,1900.

T0 @ZZ whom it may concern.-

Beit known that I. PHILIP DIEHL, acitizen of the United States, residing'at Elizabeth, in

have invented certain new and useful Im- This invention relates "to that class of clutches adapted to transmit motion from a rotary reciprocating driving member to a continuously or intermittingly rotating driven member; and it has for its object to provide a clutch of the class referred to which is adapted to withstand the wear incidental 'to rapidly-rotating parts, which will have a strong transmitting power, and which will readily relax its grip when the movement of the driv ing member is reversed. i

In the accompanying drawings, Figure 1 is with portions of the drivingmember in sec- Fig. 2 is an inside face view of the driving member, with the clutch-lever in operative relation thereto. Fig. 3 is a sectional View on line 3 3, Fig. l, showing the clutch duplicated, and thus adapted for transmitting motion from two alternately-acting rotary reciprocating driving members to a single continuously-rotating driven member.

Referring to the drawings,`A denotes a hub, pulley, or wheel to be driven and which is herein shown as being rigidly attached to a spindle or shaft a by set-screws a', but which might, if desired, be formed integral with said spindle or shaft. i

B denotes the driving members, mounted to rotate loosely on the shaft or spindle a, said h, preferably formedintegral therewith. t

The faces rof the driven member or wheel rings C, preferably (but not necessarily) cut through in the middle at c, thus forming two clutch-shoes separated at one point for the interposition between them of one end of thev clutch-levers D, pivotally or' loosely mounted attheir opposite ends between lugs b', formed on the inner faces of the disks or drivingA seriaINo. 11,371. cio man.)

central portions, so as to eXtendai-ound the shaft or spindle ct, and also around bosses or hubs b2 on the inner faces of the drivin g-disks B, the said hubs serving as central bearings or stops for the clutchlevers to limit their inward movements when the driving members are reversed and tlieclutch rings or shoes are released from their grip on the driven member or wheel.

To insure quick and unfailing action of the clutch shoes or rings in gripping the driven member or wheel when the driving members commence to rotate in a forward direction, as

, also quick releasing action, light coil-springs CZ are preferably interposed between the clutch-levers D and the bosses or hubs b2, forming the central bearing-points `for the i said clutch-levers; but these springs are not 1 absolutely necessary, as the clutches will operate without them.

` The clutch-shoes or divided clutch-rings C are preferably formed with a plurality of bearing points or sections c2 for engagementwith the inner faces of the flanges of the driven rs l member or wheel A, although they might be formed with smooth outer surfaces for contact with the bearing-faces of the said driven member.

For convenience the above description of the invention refers tothe preferred or duplicated form thereof shown in Fig. 3 of the drawings and adapted for operation in a treadle mechanism such as is shown by my United States Patent No. 630,194, dated August 1, 1899, and in which the driven mem- Aber is a hub fixed to the shaft which is to be continuously rotated by alternately-acting rotary reciprocating `driving members. It will, however, be understood that for impart ing an intermittent rotary movement to a driven member--as, for example, a sewingmachine feeding-wheel-only asingle clutch mechanism, such as is shown in Figs. l and 2, will be employed, and that the invention comprises either a single or a duplicated form of the improved clutchmechanism.

i In the operation of the invention when a driving member is moved ina direction to have a tendency, by the drag on the drivenmember, to move the clutch-lever carried by said driving member inward toward the hub IOO b2 of said driving member or against the stress oiga. springd the grip of the clutch-shoes .QL

divided clutch-ring o n the driven mellilbel"v will be immediately relaxed to permitthe driving member to rotate or move bzmkwe'rc'l freely;V butwhen the vdriving member is ro, tet'ed for-ward vthe clutch-'lever swings 'outward. slightly from the stop or hubb2 and .a

slight twisting prying movement of its endy which-is between the clutch-shoes or divided point `c,for the reason that there will thus be less resistance to overcome `et the commence- 3 ment ofthe clu tch-grip ping action than there would be if said ring were only divided lfor the vreception between its'parts'of the end of the clutch-lever. I

f Having thus, .described my invention', v`I

vclaim and desire to secure by Letters Pett-y l. rI n a clutch mechanism, the combination with amember or Wheel to be driven, of a lever. y Y

tdbe .driven and a, shaft'prIspindlei-igidthere-,

With',"0f `a'."drivi'ng lmember rydiskdoosely mounted on `seid shaft or spindle-and'having on its 4inner` face 'a boss lor hub, a.l clutch-lever operatively connected at lone `end with said driving member or disk, a central bearing or ,stopfor seid clutch-lever at saidboss orhub,

'anda-split clutch-ringv housed within said driven pulley or wheel and between the parts ofzwhieh the other .end of said clutch-lever is interposed.A

' f 3. The'combination withthe-wheelor pulley Arhaving recessed opposite faces,- of the shnftor-spindle `a, rigid with Said wheel o r pu1ley,`the dri ving-disks ordriviug 4members;

;B.loosely mounted on said` shaft' or spindle afndprovide'd with the 'pinions bon their outer farces andthe hubs or bosses b2 on their inner fa.ces,.1he split ,elutchwingsG'housed in the recessed `r`feces of said wheel or pulley,r and the @Intell-levers D each operatively connected at one end' with said disks or'driving members andeaeh having its other end interposed betweenperts of said split clutch-rings, said .levers having central bearings at said hubs or bosses, to :operatefsubstantially as hereinbefore set forth. split clutehfring housed within seid'member 2 or wheel, a clutch-lever having one end inter- Y posed) `between the yparte .of said split elutehf` n ring, n, central bearing or stop for said clutch;`

`eind a. driving member orpart operatively connected with the other end ofv'said clutch#v 1 j U In testimonywhereof Iy affix my signature in the presence 'of two witnesses. 'n

d y PHILIP D1EHL- `Witnesses;

l HENRY GALVER, n HENRY AJ. MILLER. t 

